remove a lot of extraneous debugging now that most of this stuff basically works
Merge pull request #259 from zzottel/master

Finish up channel/ plinks
Merge https://github.com/friendica/red into zpull
process str_replace before urlencoding
some minor cleanup on plinks for some very subtle permissions issues
simplify permalink selection logic
wrap the web interface to DAV in a Red page. This is before we make the strings translateable and put it in a template.
add link from DAV web ui to filestorage to set properties or delete or whatever
add cloud link to profile_tabs and Comanchify the sucker
only let visitors remove their own files.
mod_filestorage: provide a URL for linking to webpages and other websites